More type checks

src/Numerics/Range.php

@@ -9,11 +9,11 @@ use Exception;
 
 class Range
 {
-    private $_min;
+    private int $_min;
 
-    private $_max;
+    private int $_max;
 
-    public function __construct($min, $max)
+    public function __construct(int $min, int $max)
     {
         if ($min > $max) {
             throw new Exception('min > max');
@@ -23,39 +23,39 @@ class Range
         $this->_max = $max;
     }
 
-    public function getMin()
+    public function getMin(): int
     {
         return $this->_min;
     }
 
-    public function getMax()
+    public function getMax(): int
     {
         return $this->_max;
     }
 
-    protected static function create($min, $max)
+    protected static function create(int $min, int $max): self
     {
         return new Range($min, $max);
     }
 
     // REVIEW: It's probably bad form to have access statics via a derived class, but the syntax looks better :-)
 
-    public static function inclusive($min, $max)
+    public static function inclusive(int $min, int $max): self
     {
         return static::create($min, $max);
     }
 
-    public static function exactly($value)
+    public static function exactly(int $value): self
     {
         return static::create($value, $value);
     }
 
-    public static function atLeast($minimumValue)
+    public static function atLeast(int $minimumValue): self
     {
         return static::create($minimumValue, PHP_INT_MAX);
     }
 
-    public function isInRange($value)
+    public function isInRange(int $value): bool
     {
         return ($this->_min <= $value) && ($value <= $this->_max);
     }